Answer
Incompatible versions cause unpredictable behavior; skew limits ensure safe upgrades.
Quick Answer
Kubernetes API and component behavior can change between minor versions. If kubelet is two minor versions behind the API server, some new features or changed behaviors won't work correctly. The skew policy ensures the control plane upgrades first (API server, then controller manager, then scheduler), followed by nodes — each step within supported skew.
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SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ